C. Jimenez-Gomis, P. Cruzado-Caballero, M. Gasca & L.S. Filippi (2018)
Nuevos fÃsiles de dinosaurios ornitÃpodos en el Santoniense (CretÃcico Superior) de la FormaciÃn Bajo de la Carpa del norte de Patagonia (NeuquÃn, Argentina).
New fossils of ornithopod dinosaurs from the Santonian (Upper Cretaceous) of the Bajo de la Carpa Formation of North Patagonia (NeuquÃn, Argentina).
Geogaceta 64: 83-86
Ornithopods are traditionally a poorly known clade of dinosaurs within the Upper Cretaceous fossil record of Argentina. In the last few years, the number of discoveries has increased significantly in the outcrops near RincÃn de los Sauces village (NeuquÃn province), where remains have appeared in two different formations (Plottier and Bajo de la Carpa formations). In this work, we present three new postcranial bones of an indeterminate ornithopod from La Escalonada site of RincÃn de Los Sauces. Those elements belong to the Bajo de la Carpa Formation (Santonian) of the NeuquÃn Group and they represent the second occurrence for this formation in RincÃn de los Sauces. The recovered remains correspond to: a right pubis fragment, a dorsal vertebral centrum and a right pedal ungual phalanx, respectively. The new fossils extend the ornithopod record, in an area where there were not findings of ornithopod remains until 2015.
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M. Boutakiout, J. Nouri & F. PÃrez-Lorente (2018)
New sinusoidal and complex trackways of Boutakioutichnium atlasicusfrom the Late Jurassic of IouaridÃne. (Morocco).Â
Rastrilladas sinusoides y complejas nuevas de Boutakioutichnium atlasicus del JurÃsico Superior de IouaridÃne (Marruecos).
Geogaceta 64: 79-82
In the syncline of IouaridÃne there are extensive dinosaur tracksites containing long trackways. These trackways show the variability of the sequences of footprints and their inferences regarding the identification of trackmakers, the variability of ichnites printed by the same trackmaker and the sequences of long-short paces in relation to the possible lameness, laterality or the sinuosity of the direction along the path. This paper confirms the enorrmous variability of forms and the possibility that there are also other causes that determine the sequences of longshort steps within the same trackway.Â